METHOD FOR RECONSTRUCTION OF REINFORCED CONCRETE BOX-SHAPED SUPERSTRUCTURE IN THE OVERHEAD SECTION OF A BRIDGE Russian patent published in 2023 - IPC E01D22/00 

FIELD: bridge building.

SUBSTANCE: invention relates to the reconstruction of a reinforced concrete box-shaped superstructure in the overhead section of a bridge. The method includes a preliminary calculation of the place of drilling of the central holes for the installation of a funnel-type bender. Then the anchorage points of the cables are calculated, placing them at the same distance from the central hole along the calculated radius. The number of cable anchor points cannot be less than n+2, where n is a prime number. Then, central holes are drilled in the span and in the overhead section, after which a funnel-type bender is installed in the central hole of the span. Next, slinging loops are installed at the estimated places for anchoring the cables, then cables are inserted into the slinging loops and fixed with anchors, followed by concreting. After that, the other ends of the cables are passed through a funnel-type bender to the lower edge of the overhead section and fixed by means of anchoring.

EFFECT: simplification of the method for reconstructing a reinforced concrete box-shaped superstructure in the overhead section of the bridge structure.

1 cl, 4 dwg